patch 9.1.0374: wrong botline in BufEnter
Problem: When :edit an existing buffer, line('w$') may return a
wrong result.
Solution: Reset w_valid in curwin_init() (Jaehwang Jung)
`do_ecmd()` reinitializes the current window (`curwin_init()`) whose
`w_valid` field may have `VALID_BOTLINE` set. Resetting `w_botline`
without marking it as invalid makes subsequent `validate_botline()`
calls a no-op, thus resulting in wrong `line('w$')` value.
closes: #14642
Signed-off-by: Jaehwang Jung <tomtomjhj@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/window.c b/src/window.c
index 7d78b5f..7322905 100644
--- a/src/window.c
+++ b/src/window.c
@@ -2475,6 +2475,7 @@
wp->w_topfill = 0;
#endif
wp->w_botline = 2;
+ wp->w_valid = 0;
#if defined(FEAT_SYN_HL) || defined(FEAT_SPELL)
wp->w_s = &wp->w_buffer->b_s;
#endif